diff --git a/pkgs/development/libraries/haskell/yesod-core/default.nix b/pkgs/development/libraries/haskell/yesod-core/default.nix
index 85dbca15fdb..219a83e1e96 100644
--- a/pkgs/development/libraries/haskell/yesod-core/default.nix
+++ b/pkgs/development/libraries/haskell/yesod-core/default.nix
@@ -9,8 +9,8 @@
 
 cabal.mkDerivation (self: {
   pname = "yesod-core";
-  version = "1.1.0.1";
-  sha256 = "1shjw18bh1kqay3imij41678dk2hpc39a8jdg89mn8mnj7gdzjxw";
+  version = "1.1.1";
+  sha256 = "1rq0zdn9d6f34s7wnnr32hnbz23z8bvz3j2ylv8sz5h3nwmbfz99";
   buildDepends = [
     aeson blazeBuilder blazeHtml blazeMarkup caseInsensitive cereal
     clientsession conduit cookie failure fastLogger hamlet httpTypes